Excavator



FIG. 1 is a front, right-side, and top view of an excavator showing the new design.

FIG. 2 is a front elevation view of the excavator.

FIG. 3 is a rear elevation view.

FIG. 4 is a left-side elevation view.

FIG. 5 is a right-side elevation view.

FIG. 6 is a top plan view.

FIG. 7 is a front, right-side, and top view.

FIG. 8 is a rear, left-side, and top view; and,

FIG. 9 is front and right-side view.

The broken lines show wheels, which form no part of the claimed design. 

CLAIM The ornamental design for an excavator, as shown and described. 